Pinsent Masons LLP is an international law firm which specialises in the energy, infrastructure, financial services, real estate and advanced manufacturing and technology sectors.[2] The firm ranks among the top hundred law firms in the world by turnover.[3]

Pinsent Masons LLP has over 400 partners, a total legal team of around 1,800 people and more than 2,500 staff. More than 500 of the firm's staff are based in its international headquarters in the City of London. It has more PLC clients than any law firm except one.[4]

Pinsent Masons was named 'Law Firm of the Year' in 2016 by respected industry magazine Legal Business[5] and 'Law Firm of the Year' 2016 at the Legal Week British Legal Awards.[6] In 2015 it was named 'The Most Innovative Law Firm in Europe' by the Financial Times.[7]

The firm has 24 offices across Africa, Asia Pacific, Europe and the Middle East.[8]

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Pinsent Masons has roots dating back to 1769. The modern day firm is the product of a series of mergers between firms including Pinsent & Co, Masons, Simpson Curtis, Biddle & Co, L'Estrange & Brett and McGrigors. Alumni of the legacy firms include former British Chancellor Alistair Darling.[9]

The firm's board is led by Senior Partner Richard Foley and Managing Partner John Cleland. In 2016 the firm announced the appointment of former Secretary of State for International Development Douglas Alexander as a strategic adviser,[11] and appointed its first external board member in the form of former banker Pauline Egan.[12]

Unlike many firms of its size, the firm professes to specialise in only five global sectors: financial services, advanced manufacturing and technology, energy, real estate and infrastructure.[13] In FY2015/16 each of the sectors accounted for 20% of the firm's turnover, except for the energy and real estate sectors which accounted for 12% each.

Pinsent Masons has won numerous awards for innovation[14] In 2012 it was in the vanguard of firms to launch a contract lawyer service, called Vario.[15] It also secured mandates to act as 'sole adviser' to corporates including Balfour Beatty[16] and E.ON.[17] In 2015 the firm acquired the majority stake in Cerico, an online compliance solutions business.[18] The firm also owns and operates Out-Law.com, a news service aimed at those with an interest in legal and commercial developments.

Pinsent Masons is the highest ranked professional services firm in the Stonewall Workplace Equality Index.[19] It is also ranked among The Times Top 50 Workplaces for Women 2016.[20] David Isaac, a partner of the firm, was appointed as Chair of the UK Equality and Human Rights Committee in 2016.[21]